US9937768B2 - Air conditioning device for vehicle - Google Patents

Air conditioning device for vehicle Download PDF

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Publication number
US9937768B2
US9937768B2 US14/897,594 US201414897594A US9937768B2 US 9937768 B2 US9937768 B2 US 9937768B2 US 201414897594 A US201414897594 A US 201414897594A US 9937768 B2 US9937768 B2 US 9937768B2
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Prior art keywords
air
heat exchanger
guide
heating heat
vehicle
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US14/897,594
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US20160137022A1 (en
Inventor
Daisuke Sakakibara
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Denso Corp
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Denso Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00035—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00564—Details of ducts or cables of air ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00078—Assembling, manufacturing or layout details
    • B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device

Definitions

  • the present disclosure relates to an air conditioning device for vehicle, provided with a heating heat exchanger that is installed inside an air conditioning case and heats cold air from an evaporator. More particularly, the present disclosure relates to an air conditioning device for vehicle that restricts unintended heating of the cold air by a downstream wall surface of the heating heat exchanger when the cold air flows above the heating heat exchanger with bypassing the heating heat exchanger.
  • Patent Document 1 describes an air conditioning device for vehicle.
  • the described device passes cold air from an evaporator to a heating heat exchanger side under the control of a first air mixing door and a second air mixing door, both of which are formed of sliding doors.
  • the cold air from each air mixing door is split to air passing through an interior of the heating heat exchanger, and air passing above the heating heat exchanger (vehicle ceiling direction) and air passing under the heating heat exchanger (vehicle floor direction) by bypassing the heating heat exchanger.
  • the three types of split air are blown into a vehicle compartment from a defroster outlet toward a windshield, a face outlet toward a face of an occupant, and a foot outlet toward foot of the occupant.
  • a bypass cold air passage is split to an upper direction and a lower direction with the heat exchanger in between.
  • Patent Document 1 JP 2013-14284 A
  • Patent Literature The content described in Patent Literature cited as the prior art is hereby incorporated herein by reference as a description of technical elements described herein.
  • an air conditioning device for a vehicle includes a cooling heat exchanger that cools an inside air which is an air inside a vehicle compartment and an outside air which is an air outside the vehicle compartment, a heating heat exchanger that is disposed downstream of the cooling heat exchanger in an airflow direction, an air mixing door that is disposed between the cooling heat exchanger and the heating heat exchanger and adjusts a degree of heating of a cold air in the heating heat exchanger by controlling a flow of the cold air that has passed through the cooling heat exchanger, an outlet from which an air adjusted in temperature by the air mixing door is blown out to the vehicle compartment, an airflow regulation wall that is disposed downstream of the heating heat exchanger in the airflow direction and introduces an air that has flowed out of the heating heat exchanger to the outlet, a first path along which the cold air that has flowed out of the cooling heat exchanger reaches the outlet with passing through an interior of the heating heat exchanger according to the control of airflow by the air mixing door, and a second path along which the
  • the airflow regulation wall includes guide plates that guide a flow of air on a downstream side of the heating heat exchanger.
  • the guide plates include a first guide that extends from a downstream wall surface of the heating heat exchanger to a downstream side in the airflow direction and bends to extend in an upward direction so as to guide an air to the outlet by letting the air flow in the upward direction from the downstream side of the heating heat exchanger along the first path, a second guide that extends from an upper end part of the heating heat exchanger to the downstream side in the airflow direction and bends to extend in a downward direction, and a third guide that extends from the first guide toward an end of the second guide.
  • a distance between an end of the first guide and the downstream wall surface of the heating heat exchanger is longer than a distance between the end of the second guide and the downstream wall surface of the heating heat exchanger.
  • the air conditioning device for vehicle has the first path and the second path as a path along which air flows.
  • an airflow of cold air that has flowed out from the cooling heat exchanger is controlled by the air mixing door to pass through the interior of the heating heat exchanger. Air heated in the heating heat exchanger reaches the outlet with flowing in the upward direction from the downstream side of the heating heat exchanger.
  • an airflow of cold air that has flowed out from the cooling heat exchanger is controlled by the air mixing door to reach the outlet from above the heating heat exchanger without passing through the interior of the heating heat exchanger (i.e., with bypassing the heating heat exchanger).
  • the air conditioning device for vehicle is provided with the guide plates that have influences on a flow of air on the downstream side of the heating heat exchanger.
  • the guide plates In order to form the first path, the guide plates have the first guide that extends from the downstream wall surface of the heating heat exchanger to the downstream side and bends in the upward direction. Hence, heated air that has flowed out from the interior of the heating heat exchanger is introduced to the first path.
  • the guide plates have the second guide that extends from the upper end part of the heating heat exchanger to the downstream side and bends in the upward direction.
  • An end of the first guide is provided farther from the heating heat exchanger than an end of the second guide.
  • the guide plates In order to restrict the contact heating air, the guide plates have the third guide that extends from the first guide toward the end of the second guide. Consequently, the generation of the contact heating air is restricted and hence a fluctuation of a temperature of air conditioning air can be restricted.
  • a dimension from an end of the third guide to the end of the second guide is given as a dimension A and a dimension from the end of the first guide to the end of the second guide is given as a dimension B.
  • the dimension A may be set in a range 0.7 to 1.3 times longer than the dimension B.
  • the dimension A is set in a range 0.7 to 1.3 times longer than the dimension B, the first path and the second path can be formed while restricting the generation of the contact heating air.
  • a relation of the dimension A and the dimension B as to which is larger than which may be expressed as: B ⁇ A.
  • the dimension A and the dimension B regulate dimensions of inlet and outlet ports of a flow of air.
  • Outgoing air is air that passes along the first path K 1 .
  • incoming air is air that flows in from a space between the end of the first guide and the end of the second guide.
  • the inflow air turns to the contact heating air that is heated upon contact with the downstream wall surface of the heating heat exchanger.
  • the dimension A is smaller than the dimension B (A ⁇ B)
  • ventilation resistance is generated against a flow of air passing along the first path.
  • an air volume is reduced and a preferable air volume ratio cannot be obtained.
  • blown air noise may become louder.
  • a reduction in air volume and blown air noise can be restricted.
  • an air conditioning device for a vehicle includes a cooling heat exchanger that cools an inside air which is an air inside a vehicle compartment and an outside air which is an air outside the vehicle compartment, a heating heat exchanger that is disposed downstream of the cooling heat exchanger in an airflow direction, an air mixing door that is disposed between the cooling heat exchanger and the heating heat exchanger and adjusts a degree of heating of a cold air in the heating heat exchanger by controlling a flow of the cold air that has passed through the cooling heat exchanger, an outlet from which an air adjusted in temperature by the air mixing door is blown out to the vehicle compartment, an airflow regulation wall that is disposed downstream of the heating heat exchanger in the airflow direction and introduces an air that has flowed out of the heating heat exchanger to the outlet, a first path along which the cold air that has flowed out of the cooling heat exchanger reaches the outlet with passing through an interior of the heating heat exchanger according to the control of airflow by the air mixing door, a second path along which the cold
  • the airflow regulation wall has guide plates that guide a flow of air on a downstream side of the heating heat exchanger.
  • the guide plates include a first guide that extends from a downstream wall surface of the heating heat exchanger to a downstream side in the airflow direction and bends to extend in an upward direction so as to guide an air to the outlet by letting the air flow in the upward direction from the downstream side of the heating heat exchanger along the first path, a second guide that extends from an upper end part of the heating heat exchanger to the downstream side in the airflow direction and bends to extend in a downward direction, and a third guide that extends from the first guide toward an end of the second guide.
  • a distance between an end of the first guide and the downstream wall surface of the heating heat exchanger is longer than a distance between the end of the second guide and the downstream wall surface of the heating heat exchanger.
  • the direction changing portion is formed of the first guide and the third guide and includes a space defined by the first guide and the third guide. The direction changing portion changes the flow direction of the cold air that has flowed into the space from the second path along the second guide to toward the outlet.
  • FIG. 1A is a schematic diagram of an air conditioning device for vehicle according to a first embodiment of the present disclosure.
  • FIG. 1B is a schematic diagram of an electric control portion of the air conditioning device for vehicle of the first embodiment.
  • FIG. 2 is a sectional view showing a part of an air conditioning unit of the air conditioning device for vehicle of the first embodiment.
  • FIG. 3 is a perspective view showing an interior of a vehicle compartment equipped with the air conditioning device for vehicle of the first embodiment.
  • FIG. 4 is a schematic sectional view showing flows of air in the air conditioning unit of the first embodiment.
  • FIG. 5 is a sectional view showing a part of the air conditioning unit of the first embodiment.
  • FIG. 6 is a schematic view showing a part of an air conditioning unit of an air conditioning device for vehicle according to a second embodiment of the present disclosure.
  • FIG. 7 is a schematic view showing a part of an air conditioning unit of an air conditioning device for vehicle according to a third embodiment of the present disclosure.
  • the parts may be combined even if it is not explicitly described that the parts can be combined.
  • the embodiments may be partially combined even if it is not explicitly described that the embodiments can be combined, provided there is no harm in the combination.
  • FIG. 1A schematically shows an air conditioning device 1 for vehicle for vehicle according to the first embodiment of the present disclosure.
  • FIG. 2 shows a part of an air conditioning unit of the air conditioning device for vehicle of the first embodiment.
  • arrows pointing upward, downward, forward, and backward denote, respectively, an upward direction U (vehicle ceiling direction), a downward direction D (vehicle floor direction), a forward direction F (vehicle forward movement direction), and a backward direction B (vehicle backward movement direction) when the air conditioning unit is equipped to a vehicle.
  • the first embodiment describes the air conditioning device 1 for vehicle for vehicle adopting an inside and outside air bi-level structure, by which inside air and outside air can be sent through separate air passages.
  • an outside air inlet 3 and an inside air inlet 4 are provided at an inlet port of an air conditioning case 2 forming the air conditioning unit.
  • the inside air or the outside air is selected by an inside and outside air switching door 6 that pivots about an axis 5 between a position indicated by a solid line and a position indicated by a broken line.
  • the selected air is introduced into the air conditioning case 2 by an air conditioning blower 7 and a temperature is controlled by a cooling heat exchanger 8 formed of an evaporator, a heating heat exchanger 9 , and a first air mixing door 10 a and a second air mixing door 10 b (collectively referred to as air mixing doors 10 ).
  • FIG. 2 shows guide grooves 10 a 1 and 10 b 1 provided to the air conditioning case.
  • the first air mixing door 10 a and the second air mixing door 10 b slide, respectively, in the guide grooves 10 a 1 and 10 b 1 .
  • the temperature-controlled air conditioning air is sent into a vehicle compartment.
  • Air drawn into the air conditioning case 2 from the outside air inlet 3 by the air conditioning blower 7 is dehumidified while passing through the cooling heat exchanger 8 by flowing an outside air passage 26 .
  • the air conditioning air is sent out from a defroster outlet (denoted also by DEF) 47 and a face outlet (denoted also by FACE) 48 . Antifogging properties are thus ensured.
  • a ventilation system of the air conditioning device 1 for vehicle for vehicle is roughly divided to two parts, namely an air conditioning blower case 21 and the air conditioning case 2 .
  • the air conditioning blower case 21 is disposed under a dashboard in the vehicle compartment and offset from a center toward a passenger's seat.
  • the air conditioning case 2 is disposed under the dashboard in the vehicle compartment substantially at a center in a right-left direction of the vehicle.
  • the air conditioning blower case 21 has an inside and outside air switching box 22 and the air conditioning blower 7 that blows out air by drawing in air through the inside and outside air switching box 22 .
  • the inside and outside air switching box 22 is provided with the outside air inlet 3 from which to introduce outside air (air outside the vehicle compartment) and the inside air inlet 4 from which to introduce inside air (air inside the vehicle compartment). Both of the inlets 3 and 4 are opened and closed by the inside and outside air switching door 6 .
  • the inside and outside air switching door 6 is driven by an electric actuator.
  • the air conditioning blower 7 includes a centrifugal fan, a drive motor, and a scroll case.
  • the air conditioning blower 7 is configured in such a manner that the fan rotates inside the scroll case.
  • the air conditioning blower case 21 is configured in such a manner that three modes can be switched from one another, and the three modes are an outside air mode in which outside air is sent, an inside air mode in which inside air is sent, and an inside and outside air bi-level mode in which outside air and inside air are sent separately.
  • the air conditioning case 2 houses the cooling heat exchanger 8 formed of an evaporator and the heating heat exchanger 9 formed of a heater core inside of which an engine coolant flows.
  • the air conditioning case 2 is a mold article of resin, such as polypropylene, having reasonable elasticity and excellent strength.
  • the air conditioning case 2 includes multiple split cases. After the heat exchangers 8 and 9 and devices described below, such as doors that control a flow of air, are stored in the multiple split cases, the multiple split cases are connected to form a single unit using a fastening method, such as screws.
  • the air conditioning case 2 is provided with two air inlet ports 23 and 24 on a side surface in a region on a forefront side of the vehicle.
  • the two air inlet ports 23 and 24 correspond to two split scroll cases of the air conditioning blower case 21 .
  • outside air flows into both of the two air inlet ports 23 and 24 .
  • inside air flows into both of the two air inlet ports 23 and 24 .
  • outside air from one scroll case flows into the first air inlet port 23 , which is one of the two air inlet ports 23 and 24
  • inside air from the other scroll case flows into the second air inlet port 24 , which is the other one of the two air inlet ports 23 and 24 .
  • a partition plate 25 is disposed inside the air conditioning case 2 .
  • the partition plate 25 splits an air passage inside the air conditioning case 2 to the outside air passage 26 for air that has flowed inside from the first air inlet port 23 to flow, and an inside air passage 27 for air that has flowed inside from the second air inlet port 24 to flow.
  • the partition plate 25 actually has a part 25 a positioned upstream of the cooling heat exchanger 8 in an airflow direction, a part 25 b positioned upstream of the heating heat exchanger 9 in the airflow direction, and a part 25 c positioned downstream of the heating heat exchanger 9 in the airflow direction.
  • the partition plate 25 is provided so as to extend fully inside the air conditioning case 2 in the right-left direction of the vehicle.
  • the partition plate 25 is provided integrally with the air conditioning case 2 .
  • the outside air passage 26 is a passage above the partition plate 25
  • the inside air passage 27 is a passage below the partition plate 25 .
  • the inside air passage 27 is disposed below the outside air passage 26 .
  • the cooling heat exchanger 8 is disposed inside the air conditioning case 2 at a region immediately after the air inlet ports 23 and 24 .
  • the cooling heat exchanger 8 is disposed inside the air conditioning case 2 fully from top to bottom and substantially parallel to a top-bottom direction (vertical direction) of the vehicle.
  • a width dimension of the cooling heat exchanger 8 in the right-left direction of the vehicle is designed to be substantially equal to a width dimension of the air conditioning case 2 .
  • the cooling heat exchanger 8 has a heat-exchanging core portion that cools air conditioning air by absorbing evaporative latent heat of a refrigerant in a refrigeration cycle from the air conditioning air.
  • the heat-exchanging core portion includes flat tubes inside of which the refrigerant passes through and corrugate fins bonded to the flat tubes.
  • the heat-exchanging core portion of the cooling heat exchanger 8 is disposed so as to penetrate through a through-hole 25 h provided to a part of the partition plate 25 ( 25 a and 25 b ).
  • An upper part is positioned in the outside air passage 26 and a lower part is positioned in the inside air passage 27 .
  • the upper part of the heat-exchanging core portion cools air flowing the outside air passage 26 (indicated by an arrow Y 11 ) and the lower part of the heat-exchanging core portion cools air flowing the inside air passage (indicated by an arrow Y 12 ).
  • a heater core forming the heating heat exchanger 9 is disposed downstream (vehicle rear side) of the cooling heat exchanger 8 in the airflow direction with a predetermined interval.
  • the heating heat exchanger 9 is disposed inside the air conditioning case 2 on a lower side with a slight inclination with respect to the top-bottom direction of the vehicle.
  • a width dimension of the heating heat exchanger 9 in the right-left direction of the vehicle is designed to be substantially equal to a width dimension of the air conditioning case 2 .
  • the heating heat exchanger 9 is a heat exchanger that heats cold air that has passed through the cooling heat exchanger 8 , and has a heat-exchanging core portion including multiple tubes (flat tubes) inside of which a hot engine coolant (heat-exchanging medium) passes through and corrugate fins bonded to the tubes.
  • the heating heat exchanger 9 also has an upper tank disposed above the heat-exchanging core portion and a lower tank disposed below the heat-exchanging core portion as tanks from which the engine coolant is distributed to the multiple tubes and into which the engine coolant is collected from the multiple tubes.
  • the tanks are not shown in FIG. 2 because the heating heat exchanger 9 is shown schematically as a whole.
  • the heat-exchanging core portion of the heating heat exchanger 9 is disposed so as to penetrate through a through-hole provided to the partition plate 25 , and an upper part is positioned in the outside air passage 26 and a lower part is positioned in the inside air passage 27 .
  • the part 25 b of the partition plate 25 bends downward between the cooling heat exchanger 8 and the heating heat exchanger 9 . Consequently, the upper part of the heat-exchanging core portion heats air flowing the outside air passage 26 and the lower part of the heat-exchanging core portion heats air flowing the inside air passage 27 .
  • the first and second air mixing doors 10 ( 10 a and 10 b ) forming a temperature adjustment portion are disposed inside the air conditioning case 2 at a region between the heating heat exchanger 9 and the cooling heat exchanger 8 .
  • the first air mixing door 10 a controls hot air heated by the upper part of the heat-exchanging core portion of the heating heat exchanger 9 and bypass air heading above the heating heat exchanger 9 . That is to say, the first air mixing door 10 a adjusts an air volume ratio between air that bypasses the heating heat exchanger 9 by passing a first cold air bypass passage 31 and air that passes through the interior of the heating heat exchanger 9 . Hot air from the upper part of the heat-exchanging core portion of the heating heat exchanger 9 and cold air from the first cold air bypass passage 31 are mixed in a first air mixing portion 33 and turned to air at a desired temperature.
  • the second air mixing door 10 b adjusts an air volume ratio between hot air that is heated by the lower part of the heat-exchanging core portion of the heating heat exchanger 9 and cold air that bypasses the heating heat exchanger 9 by passing a second cold air bypass passage 32 .
  • Hot air from the lower part of the heat-exchanging core portion of the heating heat exchanger 9 and cold air from the second cold air bypass passage 32 are mixed in a second air mixing portion 34 and turned to air at a desired temperature.
  • the first and second air mixing doors 10 are formed of a sliding door that moves by sliding. Although it is not shown in the drawing, each of the first and second air mixing doors includes a plate-like door main body portion and a rack combined into one unit.
  • the rack of the first air mixing door 10 a meshes with a pinion (not shown) provided to a first shaft and the first shaft is driven to rotate by an electric actuator (not shown). Accordingly, rotational motion of the first shaft is converted to sliding motion of the first air mixing door 10 a and a slide position of the first air mixing door 10 a is adjusted.
  • the rack of the second air mixing door 10 b meshes with a pinion (not shown) provided to a second shaft and the second shaft is driven to rotate by an electric actuator (not shown). Accordingly, rotational motion of the second shaft is converted to sliding motion of the second air mixing door 10 b and a slide position of the second air mixing door 10 b is adjusted.
  • the first and second shafts extend in the right-left direction of the vehicle and are supported on side surfaces of the air conditioning case 2 in a rotatable manner. One ends of the first and second shafts penetrate through a side wall of the air conditioning case 2 and are coupled to the electric actuators (not shown) on the outside of the air conditioning case 2 .
  • Both ends of the first air mixing door 10 a in the width direction are inserted into the first guide grooves 10 a 1 ( FIG. 2 ) provided to the side surfaces of the air conditioning case 2 .
  • both ends of the second air mixing door 10 b in the width direction are inserted into the second guide grooves 10 b 1 provided to the side surfaces of the air conditioning case 2 .
  • Each of the first and second guide grooves 10 a 1 and 10 b 1 are provided by a pair of opposing walls protruding from the side surfaces of the air conditioning case 2 to an inner side of the air conditioning case 2 .
  • the first guide grooves 10 a 1 extend substantially in the top-bottom direction and substantially parallel to an air inflow surface of the heating heat exchanger 9 .
  • the first guide grooves 10 a 1 guide an operation direction (sliding movement direction) of the first air mixing door 10 a substantially parallel to the air inflow surface of the heating heat exchanger 9 and substantially in the top-down direction.
  • the second guide grooves 10 b 1 extend by inclining to a direction close to a horizontal direction in comparison with the first guide grooves 10 a 1 .
  • the second guide grooves 10 b 1 guide an operation direction (sliding movement direction) of the second air mixing door 10 b to a direction laid on the horizontal side in comparison with the operation direction (sliding movement direction) of the first air mixing door 10 a.
  • a defroster opening 41 opens in a top surface of the air conditioning case 2 at a region adjacent to the first air mixing portion 33 .
  • the defroster opening 41 is an opening to let in temperature-controlled air conditioning air from the first air mixing portion 33 , and connected to the defroster outlet 47 via an unillustrated defroster duct. Air is blown out from the defroster outlet 47 toward an inner surface of a windshield (window glass) 46 at the front of the vehicle.
  • a face opening 42 opens in the top surface of the air conditioning case 2 at a region more on the vehicle rear side (closer to the occupant) than the defroster opening 41 .
  • the face opening 42 is an opening to let in temperature-controlled air conditioning air from the first air mixing portion 33 .
  • the face opening 42 is connected to the face outlet (denoted also by FACE) 48 disposed on the upper side of the dashboard via an unillustrated face duct. Air is blown out from the face outlet 48 toward the face of an occupant sitting in the front seat in the vehicle compartment.
  • the defroster opening 41 and the face opening 42 are opened and closed by unillustrated doors (opening doors).
  • a foot opening 43 opens in a vehicle rear portion of the air conditioning case 2 at a region adjacent to the second air mixing portion 34 .
  • the foot opening 43 is an opening to let in temperature-controlled air conditioning air from the second air mixing portion 34 and opens in the both side surfaces of the air conditioning case 2 on the right and left.
  • Unillustrated foot doors that open and close the respective foot openings 43 are disposed in the vehicle rear portion of the air conditioning case 2 .
  • the foot doors are turned by a rotation shaft disposed in the right-left direction of the vehicle.
  • the foot doors are coupled to an unillustrated electric actuator and operated to rotate by an actuator mechanism.
  • the partition plate 25 extends also to the vehicle rear side of the heating heat exchanger 9 and therefore also plays a role of separating the first and second air mixing portions 33 and 34 together with an unillustrated door.
  • FIG. 3 shows an interior of the vehicle compartment equipped with the air conditioning device for vehicle of the first embodiment. As are shown in FIG. 1A and FIG. 3 , air from the defroster opening 41 is blown out toward the windshield 46 of the vehicle via the defroster opening 47 .
  • Air from the face opening 42 is blown out to the face of the occupant via side face outlets (denoted also by SD.FACE) 48 a and 48 b and center face outlets (denoted also by CT.FACE) 48 c and 48 d.
  • side face outlets denoted also by SD.FACE
  • center face outlets denoted also by CT.FACE
  • the side face outlets 48 a and 48 b are provided at both ends on the right and left of the vehicle.
  • the center face outlets 48 c and 48 d are provided in a pair at a center of the dashboard.
  • the side face outlets 48 a and 48 b and the center face outlets 48 c and 48 d are collectively referred to simply also as the face outlets 48 .
  • FIG. 4 describes flows of air inside the air conditioning case 2 shown in FIG. 2 . Flows of air in the vehicle compartment in the first embodiment will be described using FIG. 1A through FIG. 4 . Air from the defroster outlet 47 ( FIG. 3 ) and air from the face outlets 48 flow in an upper part of the vehicle compartment.
  • the air includes a large volume of outside air which is fresh air.
  • the air including a large volume of outside air is blown toward the face of a driver from the center face outlets 48 c and 48 d and the side face outlets 48 a and 48 b.
  • an outlet direction may swing as indicated by an arrow Y 32 of FIG. 3 .
  • Air that has flowed out from the foot opening 43 is blown out from foot outlets (denoted also by FOOT) 50 ( FIG. 3 ), and circulates in a lower part of the vehicle compartment.
  • the air circulating in the lower part near the foot includes a large amount of inside air which is warm air.
  • the air conditioning device 1 for vehicle for vehicle is automatically controlled by an air conditioning control device 51 of FIG. 1B .
  • the air conditioning control device 51 is so-called an ECU and includes a micro-computer and so on, and controls the respective air conditioning devices installed in the air conditioning blower case 21 and the air conditioning case 2 according to pre-set programs.
  • a power is supplied to the air conditioning control device 51 from an in-vehicle battery (not shown) when an ignition switch (not shown) of an engine equipped to the vehicle is turned ON.
  • the air conditioning control device 51 receives inputs of sensor signals from a sensor group 53 and operation signals from an air conditioning operation panel 52 provided to the dashboard at the front in the vehicle compartment.
  • the sensor group 53 includes an outside air temperature sensor that detects a temperature outside the vehicle compartment (outside air temperature) Tam and an inside air temperature sensor that detects a temperature inside the vehicle compartment (inside air temperature) Tr.
  • the sensor group 53 also includes a solar radiation sensor that detects an amount of solar radiation, Ts, into the vehicle compartment, a cooling heat exchanger temperature sensor that detects an outlet air temperature TE of the cooling heat exchanger 8 , a water temperature sensor that detects a temperature of hot water, Tw, to the heating heat exchanger 9 , and so on.
  • the operation panel 52 is provided with a temperature setting switch to set a pre-set temperature (Tset), an outlet mode setting switch, an inside and outside air mode setting switch, an air conditioning mode setting switch, and so on.
  • Drive devices of the respective air conditioning devices controlled by the air conditioning control device 51 include a drive motor of the inside and outside air switching door 6 , a drive motor of the air conditioning blower 7 , drive motors of actuator mechanisms of various doors including the first and second air mixing doors 10 and unillustrated doors, such as the face door and the foot doors, and so on.
  • the air conditioning control device 51 runs an air conditioning control program pre-stored in a storage circuit upon input of an operation signal of the air conditioning device 1 for vehicle for vehicle from the operation panel 52 while the vehicle is in operation.
  • TEO target outlet air temperature
  • the air conditioning control device 51 determines control states of the fan drive motor that drives the air conditioning blower 7 , the various electric actuators in the air conditioning case 2 , and so on according to the target outlet air temperature (TAO), and outputs control signals to the various actuators so as to obtain the determined control states. Subsequently, the air conditioning control device 51 again repeats a routine: reading the detection signals and the operation signals ⁇ calculating the target outlet air temperature (TAO) ⁇ determining new control states ⁇ outputting control signals.
  • TEO target outlet air temperature
  • a control state of the drive motor of the air conditioning blower 7 is determined according to the target outlet air temperature (TAO) with reference to a control map pre-stored in the storage circuit. More specifically, a volume of blown air is controlled to be in the vicinity of a maximum volume by assuming that a control voltage outputted to the electric motor in an extremely low temperature range (maximum cooling range) and an extremely high temperature range (maximum heating range) of the target outlet air temperature (TAO) is a maximum voltage. The volume of blown air is decreased as the target outlet air temperature (TAO) nears an intermediate temperature range.
  • a control state of the electric actuators of the first and second air mixing doors 10 is determined in such a manner that a degree of opening of the first and second air mixing doors 10 coincides with a target degree of opening (SW).
  • the target degree of opening (SW) is calculated by a known manner from the outlet air temperature TE of the cooling heat exchanger 8 detected by the cooling heat exchanger temperature sensor, the hot water temperature Tw of the engine coolant detected by the water temperature sensor, and so on.
  • the first and second air mixing doors 10 are at a maximum heating position (MaxHot). Hence, the first and second air mixing doors 10 fully close the first and second cold air bypass passages and fully open on the sides of the heating heat exchanger 9 . Also, when a degree of opening (SW) is 0(%), the first and second air mixing doors 10 are at a maximum cooling position (MaxCool). Hence, the first and second air mixing doors 10 fully open the first and second cold air bypass passages and fully close on the sides of the heating heat exchanger 9 .
  • a control state of the electric actuator of the inside and outside air switching door 6 is determined according to the target outlet air temperature (TAO) with reference to a control map pre-stored in the air conditioning control device 51 .
  • the outside air mode to introduce outside air is selected preferentially as a rule.
  • the inside air mode is selected at the time of the maximum cooling during which the target outlet air temperature (TAO) is in the extremely low temperature range and the inside and outside air bi-level mode is selected at the time of maximum heating during which the target outlet air temperature (TAO) is in the extremely high temperature range.
  • the outlet mode is successively switched as follows while the target outlet air temperature (TAO) rises from the low temperature range to the high temperature range: face mode ⁇ bi-level mode ⁇ foot mode.
  • TAO target outlet air temperature
  • the face mode is selected mainly at the time of cooling during summer when the target outlet air temperature (TAO) is in the low temperature range.
  • the bi-level mode is selected mainly at the time of air conditioning during spring and autumn when the target outlet air temperature (TAO) is in the intermediate temperature range.
  • the foot mode is selected mainly at the time of cooling during winter when the target outlet air temperature (TAO) is in the low temperature range.
  • a vehicle compartment humidity sensor may be provided further, so that a defroster mode is selected when it is determined on the basis of a detection signal of the humidity sensor that fogging formation is highly likely to occur on the windshield.
  • the heating heat exchanger 9 is disposed on the vehicle rear side (one side in the horizontal direction) of the first air mixing door 10 a and the second air mixing door 10 b .
  • the sliding movement direction of the second air mixing door 10 b in the second guide grooves 10 b 1 is inclined in such a manner that a slide lower end position is positioned more on the vehicle rear side (on the side of the heating heat exchanger 9 ) than a slide upper end position.
  • the slide lower end position of the second air mixing door 10 b is positioned more on the vehicle rear side (on the side of the heating heat exchanger 9 ) than a sliding movable range of the first air mixing door 10 a.
  • the heating heat exchanger 9 is disposed in such a manner that the heating heat exchanger 9 is inclined to the same side as the sliding movement direction of the second air mixing door 10 b and positioned directly above a sliding movable range of the second air mixing door 10 b at least partially. Hence, a physical size of the air conditioning case 2 in a front-rear direction of the vehicle (horizontal direction) can be reduced.
  • a slide lower end position of the first air mixing door 10 a is positioned more on the vehicle rear side (on the side of the heating heat exchanger 9 ) and lower than the slide upper end position of the second air mixing door 10 b . Hence, a physical size of the air conditioning case 2 in the top-bottom direction can be reduced.
  • a first shaft attachment hole 10 a 2 of the first air mixing door 10 a is disposed adjacently to the upper tank of the heating heat exchanger 9 .
  • a second shaft attachment hole 10 b 2 of the second air mixing door 10 b is disposed adjacently to the lower tank of the heating heat exchanger 9 .
  • the air conditioning device 1 for vehicle for vehicle of the first embodiment has the air conditioning case 2 .
  • the air conditioning device 1 for vehicle for vehicle has the cooling heat exchanger 8 that cools inside air which is air inside the vehicle compartment and outside air which is air outside the vehicle compartment, and the heating heat exchanger 9 disposed downstream of the cooling heat exchanger 8 in the airflow direction.
  • the air conditioning device 1 for vehicle for vehicle has the air mixing doors 10 ( 10 a and 10 b ) disposed between the cooling heat exchanger 8 and the heating heat exchanger 9 and adjusting a degree of heating by the heating heat exchanger 9 for cold air that has passed through the cooling heat exchanger 8 by controlling a flow of the cold air.
  • the air conditioning device 1 for vehicle for vehicle has the outlets from which temperature-adjusted air by the air mixing doors 10 is blown into the vehicle compartment.
  • the outlets include the defroster outlet 47 from which air is blown toward the windshield 46 , the side face outlets 48 a and 48 b , the center face outlets 48 c and 48 d , and the foot outlets 50 .
  • the side face outlets 48 a and 48 b and the center face outlets 48 c and 48 d branch from the single opening 42 ( FIG. 1A ) in the air conditioning case each using a different duct, and are therefore collectively referred to also as the face outlets 48 .
  • the air conditioning device 1 for vehicle for vehicle has an airflow regulation wall 100 ( 101 , 102 , and 103 ) disposed downstream of the heating heat exchanger 9 in the airflow direction and introducing air that has flowed out from the heating heat exchanger 9 to the respective outlets 47 , 48 and 50 as shown in FIG. 4 .
  • a first path K 1 (first passage) is accordingly formed, along which air passes through the interior of the heating heat exchanger 9 , flows in the upward direction U from the downstream side of the heating heat exchanger 9 , and reaches the defroster outlet 47 and the face outlets 48 .
  • An airflow of cold air that has flowed out from the cooling heat exchanger 8 is controlled by the first and second air mixing doors 10 a and 10 b , and the cold air flows without passing through the interior of the heating heat exchanger 9 (that is, by bypassing the heating heat exchanger 9 ).
  • the air forms a second path K 2 (second passage) along which the air reaches the defroster outlet 47 and the face outlets 48 from above the heating heat exchanger 9 .
  • the airflow regulation wall 100 includes guide plates 100 (generic name of 101 , 102 , 103 , and so on) that guide a flow of air on the downstream side of the heating heat exchanger 9 .
  • the guide plates 100 In order to form the first path K 1 , the guide plates 100 have a first guide 101 that extends upright from a downstream wall surface 90 of the heating heat exchanger 9 to a downstream side in the airflow direction and bends to extend in the upward direction U.
  • the first guide 101 introduces air to the outlets by letting the air flow up in the upward direction U from the downstream side of the heating heat exchanger 9 along the first path K 1 .
  • the first guide 101 is a guide to form the first path.
  • FIG. 4 shows the configuration of the air conditioning case 2 without the heating heat exchanger 9 .
  • the downstream wall surface 90 of FIG. 4 indicates a position at which to dispose the downstream wall surface 90 of the heating heat exchanger 9 .
  • the guide plates 100 have a second guide 102 that has influences on the second path K 2 along which air reaches the defroster outlet 47 and the face outlets 48 from above the heating heat exchanger 9 without passing through the interior of the heating heat exchanger 9 .
  • the second guide 102 extends upright from an upper end part 9 t 1 of the heating heat exchanger 9 to the downstream side and bends to extend in the downward direction D.
  • An end 101 t 1 of the first guide 101 is disposed in a region farther from the heating heat exchanger 9 than an end 102 t 1 of the second guide 102 .
  • a distance between the end 101 t 1 of the first guide 101 and the downstream wall surface 90 of the heating heat exchanger 9 is longer than a distance between the end 102 t 1 of the second guide 102 and the downstream wall surface 90 of the heating heat exchanger 9 .
  • the guide plates 100 also have a third guide 103 that extends from the first guide 101 toward the end 102 t 1 of the second guide 102 .
  • the third guide is a guide to restrict contact heating air.
  • FIG. 5 shows an enlarged part of FIG. 4 .
  • the third guide 103 extends toward the end 102 t 1 of the second guide 102 from a base portion 101 b of the first guide 101 extending to the downstream side in the airflow direction.
  • a dimension from an end 103 t 1 of the third guide 103 to the end 102 t 1 of the second guide 102 is denoted by a dimension A.
  • a dimension from the end 101 t 1 of the first guide 101 to the end 102 t 1 of the second guide 102 is denoted by a dimension B.
  • the dimension A is set in a range 0.7 to 1.3 times longer than the dimension B.
  • the relation may be set so as to establish an inequality: B ⁇ A ⁇ 1.3 ⁇ B.
  • the partition plate 25 ( 25 b , 25 c ) that splits air flowing into the heating heat exchanger 9 to two types, namely upper air and lower air flowing below the upper air, is provided at least downstream of the cooling heat exchanger 8 .
  • the partition plate 25 is also provided upstream of the cooling heat exchanger 8 as the partition plate 25 a in order to form the inside and outside air bi-level structure.
  • the first guide 101 is provided between the partition plate 25 c on the downstream side of the heating heat exchanger 9 and the second guide 102 .
  • the air conditioning case 2 of the first embodiment has the inside and outside air bi-level structure, by which air outside the vehicle is passed above the partition plate 25 and inside air inside the vehicle compartment is passed below the partition plate 25 .
  • the cooling heat exchanger 8 is formed of an evaporator that is cooled by letting a refrigerant evaporate.
  • the heating heat exchanger 9 is formed of a heater core inside of which the engine coolant flows. Either an electric heater that generates heat when current is passed or a condenser that generates heat by letting refrigerant condense may be adopted instead of the heater core.
  • the air conditioning device 1 for vehicle for vehicle has the first path K 1 (indicated by a broken line of FIG. 4 ) and the second path K 2 (indicated by a solid line) as paths along which air flows.
  • first path K 1 an airflow of cold air that has flowed out from the cooling heat exchanger 8 is controlled by the air mixing doors 10 to pass through the interior of the heating heat exchanger 9 .
  • Air heated in the heating heat exchanger 9 reaches the openings 41 and 42 by flowing in the upward direction U from the downstream side of the heating heat exchanger 9 .
  • an air flow of cold air that has flowed out from the cooling heat exchanger 8 is controlled by the air mixing doors 10 to reach the outlets 48 and so on from above the heating heat exchanger 9 without passing through (by bypassing) the interior of the heating heat exchanger 9 .
  • the air conditioning device 1 for vehicle for vehicle is provided with the guide plates 100 (generic name of 101 , 102 , 103 , and so on) having influences on a flow of air on the downstream side of the heating heat exchanger 9 .
  • the guide plates 100 In order to form the first path K 1 , the guide plates 100 have the first guide 101 that extends to the downstream side from the downstream wall surface 90 of the heating heat exchanger 9 and bends in the upward direction U. Hence, heated air that has flowed out from the interior of the heating heat exchanger 9 is introduced to the first path K 1 .
  • the guide plates 100 have the second guide 102 that extends to the downstream side from the upper end part 9 t 1 of the heating heat exchanger 9 and bends in the downward direction D.
  • the end 101 t 1 of the first guide 101 is provided farther from the heating heat exchanger 9 than the end 102 t 1 of the second guide 102 .
  • air may flow in from a space between the end 101 t 1 of the first guide 101 and the end 102 t 1 of the second guide 102 and contact heating air F 1 (alternate long and two short dashes line) that is heated upon contact with the downstream wall surface 90 of the heating heat exchanger 9 may possibly be generated.
  • heating air F 1 alternative long and two short dashes line
  • the guide plates 100 In order to restrict the contact heating air F 1 , the guide plates 100 have the third guide 103 extending from the first guide 101 toward the end 102 t 1 of the second guide 102 (and parallel to the downstream wall surface 90 ). Hence, air makes a U-turn due to a dynamic pressure as is indicated by an arrow F 2 in a space 60 between the third guide 103 and the first guide 101 .
  • the contact heating air F 1 is thus restricted and hence a fluctuation of a temperature of air conditioning air can be restricted.
  • the air conditioning device 1 for vehicle for vehicle has a direction changing portion that changes a flow direction of cold air heading for the heating heat exchanger 9 in the first path K 1 from the second path K 2 to head for the outlets 47 and 48 .
  • the direction changing portion is formed of the first guide 101 and the third guide 103 and includes the space 60 defined by the first guide 101 and the third guide 103 .
  • the direction changing portion changes a flow direction of cold air that has flowed into the space 60 from the second path K 2 along the second guide 102 to head for the outlets 47 and 48 .
  • the space 60 is positioned between a portion 101 a of the first guide 101 that extends in the upward direction U and the third guide 103 .
  • Ribs that block the contact heating air F 1 may be provided to the second guide 102 with the intention of restricting the contact heating air F 1 .
  • a negative pressure is generated on the downstream side of the ribs due to a flow of the cold air bypassing the heating heat exchanger 9 .
  • hot air may be drawn from the downstream wall surface 90 of the heating heat exchanger 9 .
  • a dimension from the end 103 t 1 of the third guide 103 to the end 102 t 1 of the second guide 102 is given as the dimension A.
  • a dimension from the end 101 t 1 of the first guide 101 to the end 102 t 1 of the second guide 102 is given as the dimension B.
  • the dimension A is set in a rage 0.7 to 1.3 times longer than the dimension B.
  • the first path K 1 and the second path K 2 can be thus formed at the same time while restricting the contact heating air F 1 .
  • the dimension A and the dimension B regulate dimensions of inlet and outlet ports for the downstream wall surface 90 of the heating heat exchanger 9 .
  • Outgoing air is the air that passes along the first path K 1 . Meanwhile, incoming air flows in from a space between the end 101 t 1 of the first guide 101 and the end 102 t 1 of the second guide 102 .
  • the inflow air turns to the contact heating air F 1 (alternate long and two short dashes line) that is heated upon contact with the downstream wall surface 90 of the heating heat exchanger 9 .
  • the dimension A in the top-bottom direction is smaller than the dimension B in the front-rear direction (A ⁇ B)
  • ventilation resistance is generated against a flow of air passing along the first path K 1 .
  • an air volume is reduced and a preferable air volume ratio cannot be obtained.
  • blown air noise may become louder.
  • B ⁇ A ⁇ 1.3 ⁇ B a reduction in air volume and blown air noise can be restricted.
  • the partition plate 25 ( 25 b , 25 c ) that splits air flowing into the heating heat exchanger 9 to two types, namely, upper air and lower air flowing below the upper air, is provided downstream of the cooling heat exchanger 8 .
  • the first guide 101 is disposed in the top-bottom direction between the partition plate 25 c on the downstream side of the heating heat exchanger 9 and the second guide 102 .
  • warm air passing through the upper part of the heating heat exchanger 9 can be passed along the first path K 1 and blown out to an upper part of the vehicle compartment.
  • the lower air flowing below the partition plate 25 c on the downstream side of the heating heat exchanger 9 can be blown out to a lower part of the vehicle compartment.
  • the upper air is outside air and the lower air is inside air.
  • the air conditioning case 2 of the air conditioning device for vehicle of the first embodiment adopts the inside and outside air bi-level structure. Hence, the antifogging effect on the windshield 46 of FIG. 3 can be excellent and heating efficiency can be enhanced by circulating inside air from the foot outlets 50 near the foot of the occupant.
  • a cold air passage is split to an upper side and an lower side with the heat exchanger in between.
  • air readily flows into a space in front of the heating heat exchanger 9 at the time of FACE mode MaxCool, during which air conditioning air cooled to the maximum extent is blown out from the face opening 42 through which air reaching the face outlets 48 flows.
  • Such exchanging of heat is disadvantageous when a temperature is adjusted with accuracy.
  • the cooling heat exchanger 8 is formed of an evaporator that is cooled by letting the refrigerant evaporate and the heating heat exchanger 9 is formed of a heater core inside of which the engine coolant flows.
  • the guide plates 100 in order to restrict the contact heating air F 1 , have the third guide 103 that extends from the first guide 101 toward the end 102 t 1 of the second guide 102 as shown in FIG. 4 .
  • the third guide 103 extends parallel to the downstream wall surface 90 of the heating heat exchanger 9 .
  • the contact heating air F 1 is blocked by the third guide 103 and a flow of the contact heating air F 1 to the downstream wall surface 90 of the heating heat exchanger 9 is restricted. Consequently, a fluctuation of a temperature of air conditioning air can be restricted.
  • FIG. 6 shows the second embodiment of the present disclosure.
  • an electric heater as a heating sub-heat exchanger 9 x forming another exchanger is provided downstream of a heating heat exchanger 9 forming a heater core.
  • the electric heater is capable of controlling an amount of heat generation by switching connections of multiple PTC heaters.
  • An upper end of the heating sub-heat exchanger 9 x forming a heat exchanger other than a cooling heat exchanger 8 and the heating heat exchanger 9 is held on a second guide 102 .
  • a lower end of the heating sub-heat exchanger 9 x is held on a lower end guide 104 that extends from a lower end 9 t 2 of the heating heat exchanger 9 and bends to extend in an upward direction U.
  • FIG. 7 shows the third embodiment of the present disclosure.
  • an air conditioning device for vehicle has a partition plate 25 ( 25 a through 25 c ) that forms an inside and outside air bi-level structure.
  • a heating sub-heat exchanger 9 x 2 forming a heat exchanger other than a cooling heat exchanger 8 and a heating heat exchanger 9 is provided below the partition plate 25 .
  • An upper end of the heating sub-heat exchangers 9 x 2 is held on the partition plate 25 c and a lower end is held on a lower end guide 104 that bends in an upward direction U.
  • the heating sub-heat exchanger 9 x 2 is formed of an electric heater or a condenser that forms a heat pump cycle.
  • sliding doors are used as the air mixing doors 10 that adjust an air volume ratio between hot air passing through the heating heat exchanger 9 and cold air bypassing the heating exchanger 9 as the adjustment device of outlet air temperature.
  • a plate-like door that pivots about an axis may be used as the air mixing doors 10 .
  • the present disclosure is applied to the air conditioning device for vehicle having the inside and outside air bi-level structure.
  • the inside and outside air bi-level structure is a mere example and is not an essential structure.
  • three plate-like doors are used as the outlet mode doors in the embodiments above.
  • a single film-like outlet mode door having multiple openings may be used instead of the three plate-like doors.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9919576B2 (en) * 2013-08-22 2018-03-20 Hanon Systems Air conditioner for vehicle and controlling method thereof
JP6559611B2 (ja) * 2016-05-18 2019-08-14 株式会社ヴァレオジャパン 車両用空調装置及びその制御方法
US10611209B2 (en) 2017-01-04 2020-04-07 Denso International America, Inc. HVAC unit
JP6791568B2 (ja) * 2017-04-20 2020-11-25 三菱電機株式会社 車両空調設備
JP2018192859A (ja) * 2017-05-15 2018-12-06 三菱重工サーマルシステムズ株式会社 車両用空調装置
JP2019199130A (ja) * 2018-05-15 2019-11-21 株式会社ヴァレオジャパン 車両用空調装置
US11787264B2 (en) 2019-05-21 2023-10-17 Hanon Systems Air conditioner for vehicle
JP7321016B2 (ja) * 2019-07-17 2023-08-04 株式会社ヴァレオジャパン 車両用エアコン装置
JP7211334B2 (ja) * 2019-10-30 2023-01-24 株式会社デンソー 空調ユニット
JP2021070396A (ja) * 2019-10-30 2021-05-06 株式会社デンソー 空調ユニット
JP7327260B2 (ja) * 2020-04-17 2023-08-16 株式会社デンソー 車両用空調装置
JP2023173928A (ja) * 2022-05-27 2023-12-07 ヴァレオ システム テルミク 車両用空調装置

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588420A (ja) 1981-07-03 1983-01-18 Nippon Denso Co Ltd カ−エアコンの操作案内方法
JPH0558143A (ja) 1991-08-29 1993-03-09 Nippondenso Co Ltd 車両用空調装置
DE10161751A1 (de) * 2001-12-15 2003-06-18 Behr Gmbh & Co Heiz-oder Klimaanlage für ein Kraftfahrzeug
JP2004224180A (ja) 2003-01-22 2004-08-12 Denso Corp 車両用空調装置
US20060060341A1 (en) 2004-09-08 2006-03-23 Denso Corporation Air conditioner for vehicle use and door device
US20060116061A1 (en) * 2004-01-28 2006-06-01 Thomas Alberternst Air conditioning system
JP2006264382A (ja) 2005-03-22 2006-10-05 Denso Corp 空調装置
US20070017655A1 (en) * 2005-07-21 2007-01-25 Valeo Thermal Systems Japan Corporation Temperature control unit in air-conditioning system
JP2007015650A (ja) 2005-07-11 2007-01-25 Denso Corp 空調装置
JP2007203888A (ja) 2006-02-02 2007-08-16 Denso Corp 空調装置
US20110117829A1 (en) * 2009-11-18 2011-05-19 Keihin Corporation Air conditioner for vehicle
WO2012023560A1 (ja) * 2010-08-19 2012-02-23 株式会社ケーヒン 車両用空気調和システム
US20120255319A1 (en) 2011-04-04 2012-10-11 Denso Corporation Refrigerant cycle device
JP2013002710A (ja) 2011-06-15 2013-01-07 Denso Corp 冷凍サイクル装置
US20130008627A1 (en) 2011-07-06 2013-01-10 Denso Corporation Air conditioner for vehicle
JP2013024437A (ja) 2011-07-16 2013-02-04 Denso Corp 空調装置
JP2014080103A (ja) 2012-10-16 2014-05-08 Denso Corp 空調装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4286244B2 (ja) * 2005-09-16 2009-06-24 株式会社ケーヒン 車両用空調装置
JP2007118753A (ja) * 2005-10-27 2007-05-17 Denso Corp 空気通路開閉装置
JP2008080889A (ja) * 2006-09-26 2008-04-10 Calsonic Kansei Corp 車両用空気調和装置
JP5625993B2 (ja) * 2011-02-22 2014-11-19 株式会社デンソー 車両用空調装置

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588420A (ja) 1981-07-03 1983-01-18 Nippon Denso Co Ltd カ−エアコンの操作案内方法
JPH0558143A (ja) 1991-08-29 1993-03-09 Nippondenso Co Ltd 車両用空調装置
DE10161751A1 (de) * 2001-12-15 2003-06-18 Behr Gmbh & Co Heiz-oder Klimaanlage für ein Kraftfahrzeug
JP2004224180A (ja) 2003-01-22 2004-08-12 Denso Corp 車両用空調装置
US20060116061A1 (en) * 2004-01-28 2006-06-01 Thomas Alberternst Air conditioning system
US20060060341A1 (en) 2004-09-08 2006-03-23 Denso Corporation Air conditioner for vehicle use and door device
JP2006103664A (ja) 2004-09-08 2006-04-20 Denso Corp 車両用空調装置
JP2006264382A (ja) 2005-03-22 2006-10-05 Denso Corp 空調装置
JP2007015650A (ja) 2005-07-11 2007-01-25 Denso Corp 空調装置
US20070017655A1 (en) * 2005-07-21 2007-01-25 Valeo Thermal Systems Japan Corporation Temperature control unit in air-conditioning system
JP2007203888A (ja) 2006-02-02 2007-08-16 Denso Corp 空調装置
US20110117829A1 (en) * 2009-11-18 2011-05-19 Keihin Corporation Air conditioner for vehicle
WO2012023560A1 (ja) * 2010-08-19 2012-02-23 株式会社ケーヒン 車両用空気調和システム
US20120255319A1 (en) 2011-04-04 2012-10-11 Denso Corporation Refrigerant cycle device
JP2013002710A (ja) 2011-06-15 2013-01-07 Denso Corp 冷凍サイクル装置
US20130008627A1 (en) 2011-07-06 2013-01-10 Denso Corporation Air conditioner for vehicle
JP2013014284A (ja) 2011-07-06 2013-01-24 Denso Corp 車両用空調装置
JP2013024437A (ja) 2011-07-16 2013-02-04 Denso Corp 空調装置
JP2014080103A (ja) 2012-10-16 2014-05-08 Denso Corp 空調装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Search Report and Written Opinion (in Japanese with English Translation) for PCT/JP2014/002918, dated Sep. 2, 2014; ISA/JP.

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DE112014002797T5 (de) 2016-03-17
JP5949677B2 (ja) 2016-07-13
CN105307880B (zh) 2017-03-29
WO2014199588A1 (ja) 2014-12-18

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